# A048773 (b-file synthesized from sequence entry) 0 1 1 11 2 32 3 84 4 209 5 511 6 1240 7 3000 8 7249 9 17507 10 42272 11 102060 12 246401 13 594871 14 1436152 15 3467184 16 8370529 17 20208251 18 48787040 19 117782340 20 284351729 21 686485807 22 1657323352 23 4001132520 24 9659588401 25 23320309331 26 56300207072 27 135920723484 28 328141654049